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29 September 2017
Mineral named after UFS professor
Tredouxite (white) intergrown with bottinoite (light grey), a complex hydrous alteration product. The large host minerals are nickel-rich silicate (grey), maybe willemseite, and the spinel trevorite (dark grey).

More than five thousand minerals have been certified by the International Mineralogical Association(IMA). One of these minerals, tredouxite, was recently named after an academic at the University of the Free State (UFS). 

Tredouxite was named after Prof Marian Tredoux, an associate professor in the Department of Geology, to acknowledge her close to 30 years’ commitment to figuring out the geological history of the rock in which this mineral occurs. The name was chosen by the team which identified the new mineral, consisting of Dr Federica Zaccarini and Prof. Giorgio Garuti from the University of Leoben, Austria, Prof. Luca Bindi from the University of Florence, Italy, and Prof. Duncan Miller from the UFS. 

They found the mineral in the abovementioned rock from the Barberton region in Mpumalanga, in May 2017.

In the past, a mineral was also named after Marie Curie
With the exception of a few historical (pre-1800) names, a mineral is typically named either after the area where it was first found, or after its chemical composition or physical properties, or after a person. If named after a person, it has to be someone who had nothing to do with finding the mineral.

Prof Tredoux said: “As of 19 September 2017, 5292 minerals had been certified by IMA. Of these, 81 were named after women, either singly or with a near relation. Marie Curie is named twice: sklodowskite (herself) and curite (plus husband). Most of the named women are Russian geoscientists.”

Another way to assess the rarity of such a naming is to consider that fewer than 700 minerals have been named after people. Given that there are by now seven billion people on the planet, it means that a person who is granted a mineral name becomes one in 10 million of the people alive today to be honoured in such a way. To date, over a dozen minerals had been named after South Africans, three of them after women (including tredouxite).

It contains nickel, antimony and oxygen
The chemical composition of tredouxite is NiSb2O6 (nickel antimony oxide). This makes it the nickel equivalent of the magnesium mineral bystromite (MgSb2O6), described in the 1950s from the La Fortuna antimony mine in Mexico.  

“This announcement is of great academic importance: the discovery by the Italian team of a phase with that specific chemical composition will undoubtedly help me and my co-workers to better understand the origin of the rock itself,” she said. She also expressed the hope that it may raise interest in the Department of Geology and the UFS as a whole, by highlighting that world-class research is being done at the department. 

The announcement of this new mineral was published on the International Mineralogical Association Commission on New Minerals, Nomenclature and Classificationwebsite, the Mineralogical Magazine and the European Journal of Mineralogy.

News Archive

UFS responds to media reports about UFS101
2012-08-18

The UFS101 is a cross-disciplinary module of the University of the Free State (UFS) that encourages critical thinking and offers access to knowledge beyond the specific qualifications for which students are registered. This is a multi-disciplinary academic curriculum that includes topics in astronomy, nanotechnology, history, law, anthropology and religion.

Throughout the seven units students are taught to think broadly rather than narrowly, and critically rather than through rote-learning.

The core curriculum module raises some difficult questions about science, humanity and the universe that have occupied human beings for centuries. There is considerable effort put into the module to enable balance, respect, and independent thinking. Students are not taught what to think but are offered different perspectives on difficult issues.

“In my unit on the question ‘how should we deal with the past?’ every effort is made for students to examine the perspectives on history held by people from different communities in South Africa,” said Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS.

Students are then encouraged to speak in class, online and in tutorial groups where they are given ample opportunities to take a position and defend it not through emotion and anger, but through logic and reason.

The objective of the module is to equip students to deal with “the present past” in constructive and empathetic ways. They are also prepared to become active citizens outside the classroom and gain skills they can use anywhere in the world.

Some students find the module difficult at first, since most of them are not used to the practice of critical thinking and dealing with difficult questions from the past, the present and the future. Most students gradually come to enjoy the core curriculum module as they become accustomed to a new style of teaching and learning.

There are 700 first-year modules at the UFS. This is the only one module offered to students in English so that all students, local and international, can engage with one another directly on the subject matter discussed in the module. However, the module material is also available in Afrikaans online.It is a pity that AfriForum Jeug Kovsies did not discuss their concerns with the presenters of the module, but chose to do it through the media.

It is a pity that AfriForum Jeug Kovsies did not discuss their concerns with the presenters of the module, but chose to do it through the media.

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